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STANDARD DEVELOPMENT 
  
  
       
STANDARD : 
APPLICATION PROGRAMS 
PD-PHYSICAL DEVICE 
RT:REAL TIME 
. IOS: INPUT/OUTPUT 
SYSTEM 
IOS+RT = PW (PHOTOGRAM 
METRIC WORKSTATION) 
\ USER Á 
* (APPLICATION PROGRAMS 
> z 
  
USER & SYSTEM INTEGRATION 
AP5 - SOFTWARE STRUCTURE